Hydraulic air-compressor



No. 624,830. Patented May 9 1899; J. LIMING.

HYDRAULIC AIR COMPRESSOR.

Jain

had tothe accompanying drawings,in which-- Figure 1 1s a vertical sectional view of the.

NITED I STATES PATENT OFFIcE.

JOHN LIMING, OF PHILADELPHIA, PENNSYLVANIA.

HYDRAULIC AIR-COMPRESSOR.

SPECIFICATION forming part of Letters Patent No. 624,830, dated May 9,1899.

Application filed September 2a, 1898. Serial No. 691,872. (No model.

To aIZZ whom it may concern:

Be it known that 1, JOHN LIMING, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Hydraulic Air-Compressors, of which the following is a specification.

My invention consists of certain improvements in the hydraulic air-compressor for which I obtained Letters Patent No. 569,929, dated October 20, 1896, the objects of my present improvements being to prevent waste of water and to insure the tighter closing of the valve which governs the outflow of water from the tank. These objects I attain in the manner hereinafter set forth, reference being lower portion of my improved air-compressor,

showing the parts in the position which they assume when water is entering the tank and compressing the air. Fig. 2 is a similar view illustrating the parts in the position which bracket at one side of the valve-seat.

they assume when water is being discharged from the tank, and Fig. 3 is a View illustrating another embodiment of the invention.

1 represents part of the compression-tank, 2 part of the water-inlet pipe, and 3 the waterdischarge pipe, the latter having around the mouth of the same, on the inside of the tank 1,a flange 4, constituting the seat for the valve '5, which is carried by a lever 6, hung to a This lever 6 has three arms, one of which carries a hollow ball 7 filled with Water, a second arm carrying an adjustable weight 8, and a third arm carrying a locking-lever 9, which when the valve is closed, as shown in Fig. 1, bears against a projecting stud 10 and locks the valve in the closed position, this lever 9, however, being connected by a rod 11 to the valveopening devices at the top of' the tank, so

- that by proper operation of said devices the valve can be raised, as shown in Fig. 2, in.

order to permit of the escape of water from the tank. The novel feature of this part of my invention consists in the disposition of that arm of the lever 6 which carries the weight 8. In the machine of the former patent this arm formed a rearward continuation of the lever, and the power of the weight was constantly exerted to open the valve, whereas in the present form of the compressor the l arm projects upwardly from the lever at a point above the fulcrum of the latter, so that when the valve 5 is closed the preponderance of the weight 8 will be on the 'valve side of the lever-fulcrum, and will hence tend to hold said valve closed against its seat, as shown in Fig. 1, while when the lever is operated so as to raise the valve the preponderance of the weight 8 will be exerted on the opposite side of the fulcrum and will hence aid in holding the valve open, as shown in Fig. 2, the action of the water-loaded ball 7 being the same as before. In the present machine also I have provided the water-inlet pipe 2 with a valve 12, which may be an ordinary plug-valve, which when the plug is in the position shown in Fig. 1 permits flow of water through the pipe 2 and into the tank, but when said plug hasbeen turned to the position shown in Fig. 2 cuts oif the flow of water through the pipe,

Secured to the plug of the valve is a lever 13, one arm of which carries a'counterweight 14:, the other arm being provided with a cup or receptacle 15, so disposed as to receive the discharge from the waste-pipe 3 of the tank, this cup having in the bottom a drainageopening 16. The counterweight let is such that when the cup 15 is empty the influence of said weight on the lever 13 will move the valve-plug to the open position, as shown in Fig. 1, but when the cup 15 is filled with water its influence will be greater than that of the counterweight 14, and consequently the valve-plug will be moved to the closed position, as shown in Fig. 2. As soon,therefore,

be filled with water and the inlet-valve 12 will be closed. Hence as long as water is'being discharged from the tank no water will such inflowbe permitted until a short time after the tank has been drained, or, in other words, until the contents of thecup 15 have drained out through the opening 16, whereuponthe counterweight 1 1 will again preponderate andwill move the lever 13 so as to again open the valve 12.

used in carrying out rnyinvention. Thus in stop-valve 12, having a projecting stem 17, the valve being normally held open by the Any desired form of inlet-valve may be Fig. 3 I have illustrated a common form of as the waste-valve 5 is opened the cup 15 will be permitted to flow into the same, nor will pressure of the water when the lever 13 is not subjected to pressure, but being closed the formation of a vacuum by siphoning action or a long drop in the drain-pipe cannot hold the waste-valve 5 to its seat, and thus interfere with the proper action of the apparatus, as sometimes happens when the wastepipe 3 is connected directly to the drain-pipe.

The devices for automatically controlling.

the inlet of the Water to the tank being entirely beneath said tank and within the lateral limits of the sameare out of the way and not likely to be interfered with, even when the tank is placed beneath a'bar and is closely surrounded by bottles or bar paraphernalia. Moreover, the action is direct and but few parts are employed, thereby insuring simplicity of operation and cheapness of construction.

It is not necessary to the proper carrying out of my invention that the valve-lever 13 should have a cup or like receptacle for receiving the discharge from the waste-pipe 3, as a simple plate upon which said flow of waste water impinges may be sufficient in some cases to effect the desired operation of the valve of the inlet-pipe, such plate being shown, for instance, at 15 in Fig. 3, and instead of employing a weighted lever for operating the inlet-valve said lever may be acted upon by a spring tending to maintain the valve normally in the open position, the tension of this spring being overcome by the action upon the lever of the water escaping from the tank.

When the lever carries a plate instead of a cup, I find it advisable to confine the volume of water flowing from the waste-pipe so as to concentrate the action of the same upon the plate. Thus, as shown in Fig. 3, the wastepipe 3 has a depending pipe 3, surrounding the plate 15, and slotted at one side for the reception and movement of the lever 13.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. The combination of the tank, its discharge-valve and float-valve lever, the latter having an upwardly-projecting arm with weight thereon, said arm being so disposed that when the valve is closed the power of the weight will be exerted to keep it closed, and when the valve is raised the power of the weight will be exerted to keep it raised, substantially as specified.

2. The combination of the compressiontank of a hydraulic air-compressor, a valved water-inlet pipe, a'valved escape-pipe, a lever acting upon the valve of the inlet-pipe, and means whereby the iiow'of water from the escape-pipe is caused to movesaid lever so as to close said inlet-valve, substantially as specified.

3. The combination of the compressiontank of a hydraulic air-compressor, a valved Water-inlet pipe, a valved water-escape pipe, a'weighted lever connected directly to the inlet-valve, and means whereby the flow of water from the escape-pipe is caused to act upon said lever so as to close said inlet-valve, substantially as specified.

4. The combination .of the compressiontank of a hydraulic air-compressor, a valved water-inlet pipe, a valved water-escape pipe, a lever acting upon the inlet-valve, a plate carried by said lever and adapted to receive the discharge from the waste-pipe, and a casing inclosing said plate but slot-ted for the reception and movement of the lever, substantiall y as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN LIMING.

Witnesses:

J os. H. KLEIN, FRANK E. BEOHTOLD. 

